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प्रश्न
Given diagram is a schematic representation of the circulatory system in humans. Study the same and answer the questions that follow:
 |
- Label the parts 1 and 4 indicated in the diagram.
- Which of the above mentioned number is the thickest artery? Also write its name.
- Mention the number and chamber of the heart which has the thickest muscular wall.
- Which of the above numbers/structures has the maximum number of blood capillaries?
- Draw neat and labelled diagrams of the transverse section of vena cava and the part numbered as 3. Make sure to show the structural differences between these two in the diagram.
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उत्तर
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- Right auricle
- Left ventricle
- Aorta
- Body organs
- Number 3 is the thickest artery. The artery's name is Aorta.
- Number 2 has the thickest muscular wall, which is the left ventricle.
- The small intestine has the maximum number of blood capillaries.
संबंधित प्रश्न
What is the liquid part of the blood called? What is the function of platelets in the blood?
Name the following:
Any one vein which starts from an organ and ends in another organ besides the heart
Name the following:
The fluid found between the membranes of the heart.
Differentiate between members of the following pairs with reference to the aspect asked within bracket:
Artery and vein (direction of blood flow)
Match the items in Column ‘A’ with those in column ‘B’ Rewrite the correct matching pairs.
| Column A | Column B | ||
| (a) | SA Node | (i) | Plasma |
| (b) | Defective haemoglobin in RBC | (ii) | Serum |
| (c) | Muscle fibres located in heart | (iii) | Pacemaker |
| (d) | The liquid squeezed out of blood during clotting | (iv) | Sickle cell anaemia |
| (e) | Never tires, keep on contracting and relaxing | (v) | Purkinje fibres |
| (f) | Cardiac cycle | (vi) | Cardiac muscle |
| (g) | Liquid part of the blood without corpuscles | (vii) | 0·85 sec |
The table below is designed to indicate the transport of certain substance in our body. Fill in the
blanks with suitable answers.
| Substance | From | To |
| Lungs | Whole body | |
| Carbon dioxide | ||
| Urea | ||
| Digested carbohydrates |
Intestines | |
| Target organs |
Differentiate between:
Arteries and Veins.
Which of the following is a major part of the plasma?
Name these:
Three components of circulatory system.
